Blade supporting means for road scrapers



MaL 14,1935. -F,E,ARNDT 2,001,648

BLADE SUPPORTING MEANS FOR ROAD SCRAPERS Filed Aug. 26, 1950 Patented May 14, 1935 a v i i UNITED STATES PATENT OFFICE BLADE SUPPORTING MEANS FOR ROAD SCRAPERS Franklin E. Arndt, Galion, ()hio, assignor to The Galion Iron Works & Mfg. Co., Galion, Ohio, a corporation of Ohio ApplicationAugust 26; 1930, Serial No; 477,876

' 6 Claims. (CI. 37-143) This invention relates to road drags or road manner of blades of this character, that is, it planers and particularly to means. for adjustably has angle irons t2 attached to its upper edge and supporting a scraping blade upon. the; frame of extendinglongitudinally of the full length thereof the road drag, the blade holding means being to stiffen the blade;

5 particularly adapted, though not necessarily These. angle irons are attached to the blade in I 5 limited, to use with the rear blade of the drag any suitable manner by riveting, welding or in which is the blade ordinarily mounted for adany other desired manner. The detailed con- ;iustment laterally orangularly with relation to struction of this blade, however, forms no part the line of draft. of this invention.

Oneof the objects of the presentinvention is Riveted, welded or otherwise attached to the '10 to provide a. blade supporting and holding means inner faces of each of the beams Iii or formed which will permit the blade to be shifted longiintegral with these beams is an angle iron l3 tudinally of itself either to the right. or left of having its. outside edge formed with an upwardly the frame into or outof a projected position and extending portion M which may be welded or '15 which will permit the blade to be disposed either otherwise attached to the horizontal web of the .aturight angles to the line of draft or at an angle I 3. This: horizontal web of the angle angle less or greater than a right angle to the iron [3 is perforated at Hi, the perforations line of draft. being disposed in uniform spaced relation along A further and'mole specific abject, i t pro. any desired portion of. the rear ends of the angle 29 vide means which will positively engage the irons l3. longitudinal. frame beam or beams to hold the 01" e P p Of hvlding the blade II t blade against movement after it has been adthe beams I0, I provide the two clamps desigjusted, said means also constituting if desired nated generally 6, these. clamps being alike. apivot .upon which the blademay be turned for Each clamp is bowed and at one end is provided angularly adjusting it. .with the hub l1 screw-threaded for the recep- 25 Other objects will appear the course of the tion of a screw-threaded pin 58'. This screw is .following' description. held by means of a set nut N in any projected My invention is illustrated in the accompany- P t ons c w p is ed t e tend ing drawing, wherein: into any one of the perforations IS. The op- Figure 1 is a fragmentary top plan view of posite. end of the clamp i6 is widened so as'to 30 .the rear end of a drag or road planing machine form a head is having jaws 20 Which fit down and rear blade and showing my clamping means on. each side of the angle irons l2. The clamp engaged with the blade; it is formed with the central hub 2 I and a lon- Figure 2, is: an enlarged sectional view through itu in l'ly xt n in rein-forcing or bracing web .35 one of the main beams 01 the frame showing 22. Extending through the central hub is a the blade and clamp in elevation; bolt 23. 'This bolt has its head disposed in a Figure 3 is a, section on the line 3 3 of recess 24 formed in a clamp 25 which embraces Figure 2; 3 the angle irons l2 forming the head of the Figure 4 is a section on the line 41- of c ape t C mp 25 be formed to pro- 440 Figure 2; vide the two opposed inwardly extending jaws In. the drawing, H) designates two channel 26 en in en h th e an l irons. irons or angle irons of the frame. The channel u 21 Onthe bo t 3 acts to draw this bolt irons extend longitudinally of the frame. in upward through. the da p therefore, spaced relation to each other and are supported causes the Clamping d 25 to w the S pe ,45 upon a rear axle and ,operatively upon a front pward into place within the head 59 and hold 45 .axle, not shown. The rear and frontaxles are the scraper up against e u de face of the provided with means, not shown, whereby the angle n 3 a d t e corresponding beam H1. .frame may, beraisedor lowered and the frame It. will be seen that with a construction of beams 10 are braced from each other by any hi h r, he blade is po itiv ly held upon '50 suitable means, not shown. The general structhe beams. H) by the screwpins f8 which extend ture of this-character is shown in my copending down into the perforations of the flange !3. application, Serial No.. 477,875, filed on the 26th Gusset plates 28 are formed at the ends of the .day of August, 19-30. angle iron or flange [3 so as to prevent the Extending across below the frame beams t0 clamps Hi from moving oil? of the angle irons I3.

: is the blade H which is constructed in the usual By retracting the pins t8, one or both ends of 5,

may be shifted, the pin I8 of the first named clamp acting as the pivot for this shifting action. By loosening both clamps, of course, the blade may be shifted longitudinally, transversely of the draft axis of the machineso as to project the blade in one direction or the other. By this means, therefore, the blade maybereadlly held in any adjusted position, either transversely shifted to the right or to. the left. 'or' rotatively.

shifted into greater or less angular relation to the line of draft. I am aware that clamps have been provided for holding scraper blades on the frame beams, such as the beams 10, but these clamps have heretofore not been provided with any locking pins, such as the locking pins l8 which positively hold the scraper supporting clamps upon the beams II], but heretofore friction has been entirely relied upon forholding :the scraperor supporting clamps in position on the beams l0.

A further advantage of the present construction lies in the fact that each pin l8, if sufficiently long, will remain in its aperture l5, even though the parts of the clamp work loose, thus -maintaining the scraper blade in proper adjusted position.

As has been mentioned above, the gusset plates 28 extend across the ends of the angle iron l3 and the upwardly extending flange l4 thereof,

the angle l3 with its flange l4 and gusset plates 28 forming, in effect, a trough closed at its ends, for positively preventing theclamps from moving off the angle irons I3.

In view of the very great strain which comes upon the scraper blades, these blades held upon the beams I by friction between the clamps and the beams have tendedto shift to a greater or less extent and it has been necessary to provide a transverse supporting beam with a clamp to engage the head of the scraper. It will be seen that this is not necessary withtmy construction and though the scraper blade is held positively in its adjusted position, yet it can be readily shifted and can, be adjusted to any desired position, either laterally projected to one side or the other of the frame of the machine or into any desired angular relation to the line of draft.

While I have heretofore referred to the set screw l8 as extending through perforations in the angle as illustrated in Figure 2, I do not wish to be limited to this as the set screw may be engaged with the flangev of the angle iron l3 intermediate the apertures l and will in this position also act to clamp the blade or the member 16 in adjusted position.

I claim:- 1. The combination with a-longitudinally extending supporting beam having an outwardly projecting flange, ascraper disposed beneath the supporting beam, of means for clamping the scraper and the supporting beam comprising a clamping member having at one end a head engaging over the scraper and atthe other end Provided with an apertured head, a pin passing through the apertured head and engageable with said flange. and means on the clamping memward against the under face of the her for engaging the scraper and drawing it upward against the under face of the beam and flange and against the head of the clamping member, said flange onthe beam having an upwardly extending guard flange within which the apertured head of the clamping'member is dis- 2. Thecombination with a longitudinally extending supporting beam, having an outwardly projecting flange, a scraper disposed beneath the supporting beam, of means for clamping the scraper and the supporting beam comprising a clamping member having at one end a head engaging over the scraper and at the other end provided'with an apertured head, a pin passin through the apertured head and engageable with said flange, and means on the clamping member for engaging the scraper and drawing it upbeam and flange and against the head of the clamping member, said flange on thebeam having an upwardly extending guard flange within which the apertured head of the clamping member is disposed, the outwardly projecting flange on the beam being formed at one end with a gusset plateto prevent the clamp from passing. off at the endof theflange.

3. The combination with a longitudinally exprojecting flange formed at its margin with. an

rupwardly projecting guide flange, and a scraper disposed beneath the supporting beam, of means for clamping the scraper to thesupporting beam, comprising a. clamping member'having at one end a head engaging over the scraper, the opposite end of the clamping member extending over the flange and between .said supporting beam and the guide flange and having a clamping element adjustably secured through said head and adapted to bear against the flange on the beam, and means intermediate the ends ofsaid clamping member for engaging the scraper and drawing it upward against the under face of the beam and flange and against the first named head.

4. A road scraping machine comprising the ening in the trough bottom for securing the blade in a predetermined position of adjustment,

. the said closed end trough preventing the clamping means from moving off the. frame. g

5. A road scraping 'machine comprising the combination with a frame, of a scraper blade, 9. closed-end trough secured to each side of the frame, and means for adjustably clamping the scraper blade to the frame, the said means comprising releasable clamps engaging the saidblade and provided with means for interlocking the clamps to the frame, the closed endtrough preventing the clamps from moving off the frame. 6. The combination with a longitudinally extending supporting beam having an outwardly projecting flange, a scraper disposedbeneath the supporting beam, of means for clamping the scraper and the supporting beam comprising a clamping member having atone end a head engaging overthe scraper and at the other end being providedwith an apertured heada pin passing through the apertured head and engageable with the flange, means on the clamping member for engaging the scraper and drawing it upwardly against the upper face of the beam and flange and against the head of the clamping member, the flange on the beam having an upwardly extending guard flange within which the apertured head of the clamping member is disposed, the outwardly projecting flange on the beam being formed at its ends with a gusset plate forming with the flange a trough closed at its ends for preventing the clamp from passing off at the ends of the flange.

FRANKLIN E. ARNDT. 

